Finding the Fourth Proportional to 100,224.68, 138,214.62 and 59,931.88
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Solution
The fourth proportional to 100,224.68, 138,214.62 and 59,931.88 is: 82,648.92
Step by Step Solution
- Step 1: Write the proportion equation
100,224.68 : 138,214.62 = 59,931.88 : x - Step 2: Convert to fraction form
100,224.68/138,214.62 = 59,931.88/x - Step 3: Cross multiply
100,224.68x = 138,214.62 × 59,931.88 - Step 4: Simplify right side
100,224.68x = 8,283,462,020.09 - Step 5: Solve for x
x = 8,283,462,020.09/100,224.68 - Step 6: Final answer
x = 82,648.92
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.